package com.tianjian.myblog.web.admin;

import com.tianjian.myblog.model.Type;
import com.tianjian.myblog.service.TypeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class TypeController {


    @Autowired
    private TypeService typeService;

    @GetMapping("/types")
    public String types(@PageableDefault(size = 3,sort = {"id"},direction = Sort.Direction.DESC) Pageable pageable,
                        Model model){

      Page<Type> types = typeService.findType(pageable);
      model.addAttribute("page",types);
      return "/admin/types";

    }

    @GetMapping("/types/input")
    public String input(Model model) {


        model.addAttribute("type", new Type());
        return "admin/types-input";
    }



    @PostMapping("/types")
    public String post(@Valid Type type, BindingResult result, RedirectAttributes attributes){

        Type type1 = typeService.findByName(type.getName());

        if(type1 != null) {
            result.rejectValue("name","nameError","不能重复添加分类");
        }

        if (result.hasErrors()) {
            return "admin/types-input";
        }
        Type t = typeService.saveType(type);
        if (t == null ) {
            attributes.addFlashAttribute("message", "新增失败");
        } else {
            attributes.addFlashAttribute("message", "新增成功");
        }
        return "redirect:/admin/types";
    }

    @GetMapping("/types/{id}/input")
    public String editInput(@PathVariable Long id, Model model) {
        model.addAttribute("type", typeService.findOneType(id));
        return "admin/types-input";
    }

    @PostMapping("/types/{id}")
    public String editPost(@Valid Type type, BindingResult result,
                           @PathVariable Long id, RedirectAttributes attributes){

        Type type1 = typeService.findByName(type.getName());

        if(type1 != null) {
            result.rejectValue("name","nameError","不能重复添加分类");
        }

        if (result.hasErrors()) {
            return "admin/types-input";
        }
        Type t = typeService.updateType(id,type);
        if (t == null ){
            attributes.addFlashAttribute("message", "更新失败");
        } else {
            attributes.addFlashAttribute("message", "更新成功");
        }
        return "redirect:/admin/types";
    }

    @GetMapping("/types/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes attributes){

        typeService.deleteType(id);
        attributes.addFlashAttribute("message","删除成功");
        System.out.println("删除方法");

        return "redirect:/admin/types";

    }

}
